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Báo cáo khoa học: "Polymorphism of viral dsRNA in Xanthophyllomyces dendrorhous strains isolated from different geographic areas"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Polymorphism of viral dsRNA in Xanthophyllomyces dendrorhous strains isolated from different geographic areas | Virology Journal BioMed Central Research Polymorphism of viral dsRNA in Xanthophyllomyces dendrorhous strains isolated from different geographic areas Marcelo Baeza 1 Mario Sanhueza1 Oriana Flores1 Vicente Oviedo1 Diego Libkind2 and Victor Cifuentes1 Open Access Address 1Laboratorio de Genética Departamento de Ciencias Ecológicas Facultad de Ciencias Universidad de Chile Santiago Chile and 2Laboratorio de Microbiología Aplicada y Biotecnología. Bariloche Río Negro Argentina Email Marcelo Baeza - mbaeza@uchile.cl Mario Sanhueza - mariosanhueza@gmail.com Oriana Flores - oriana.flores@gmail.com Vicente Oviedo - eloytones@gmail.com Diego Libkind - diego.libkind@gmail.com Víctor Cifuentes - vcifuentes@uchile.cl Corresponding author Published 8 October 2009 Received 17 August 2009 Accepted 8 October 2009 Virology Journal 2009 6 160 doi l0.ll86 I743-422X-6-I60 This article is available from http www.virologyj.com content 6 1 160 2009 Baeza et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Strains of the astaxanthin producing yeast Xanthophyllomyces dendrorhous have been isolated from different cold regions around the earth and the presence of double stranded RNA dsRNA elements was described in some isolates. This kind of viruses is widely distributed among yeasts and filamentous fungi and although generally are cryptic in function their studies have been a key factor in the knowledge of important fungi. In this work the characterization and genetic relationships among dsRNA elements were determined in strains representatives of almost all regions of the earth where X. dendrorhous have been isolated. Results Almost all strains of X. dendrorhous analyzed carry one two or four dsRNA elements of molecular sizes